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Major shuffling of Cisco executives afoot

Cisco announces longtime M&A chief Ned Hooper is leaving. CTO Padmasree Warrior takes over and Pankaj Patel assumes sole leadership of engineering.
vCloud and VEPA: Neither answer is a winner

vCloud and VEPA fail to address the virtualization networking problem, as both are deemed proprietary and don’t enable networking functions within the vSphere environment.
When physical security breaches are the problem

Network engineers are so busy dealing with intrusion prevention and firewalling that they forget about physical security breaches. Blogger Ethan Banks has some advice.
Cisco upgrades the Catalyst 6500…but some wonder why

The Cisco Catalyst 6500 upgrade announced this year didn't excite everyone as expected. Blogger Greg Ferro wonders why Cisco didn't stay focused on the Nexus line instead.

Networking Tutorials and Technical Guides

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LearnIT: Virtual LANs

What is a virtual LAN? This guide explains the basics in one easy to read format. Learning Guide
What is the concept of address allocation in virtual private networks?

Ask the Expert
Learning Guide: Voice over IP

Learning resources: White papers, protocols, annotated Web links, and more... Article
The 10 Most Misunderstood Terms in IT

Here are the ten terms that our users report as 'most misunderstood' by those who work in information technology. Article
Which key is which?

A look at the differences between symmetric and asymmetric keys. Tip
Learning Guide: Wireless security

Here's your one-stop shopping for information on wireless security. Learning Guide
802.11 Learning Guide

Get up-to-speed quickly on the various 802.11 specifications with this learning guide. Article
Take the challenge, part 11

Take the challenge, part 11 Article
What is trailer information?

Ask the Expert
Take the challenge, part 8

Take the challenge, part 8 Article

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